/v'()C)/.S (13 



(Imppfd hy ljir(K, aini)iiL;st the Ica\cs in the head 

 ol a |)alm-licc, there it bei^ins to ,Lin>w and forms 

 root alter root, ^L;rackially de.scen{h'n<4- the >tein of 

 the tree and claspini;^ it so tilihtl)- that at last the 

 |)ahn is strani;led and falls to the i^round carrying; 

 its destroN'er with it, where it roots and ^ro\\^ into 

 a tree. 



I'AkAMlK KnoTs. 



As in human societ\' there are thievish characters 

 who li\e I))- preyin^^ upon their nei<^hbours, so in 

 \ei^^etable society we find unite a number of different 

 l)lanls L^rowiuL; at the expense of others, insertinj^- 

 their roots into the stems and ro(^ts of trees instead 

 of drawini;- their nourishment from the <^round. 

 Careful distinction must be drawn between such 

 plants as ivy, virginian creeper, clematis, Hchens, &c., 

 which simply i^row and ch'mb on the bark of trees, 

 and the true parasites which are nourished b\- the 

 juices ot the trees and plaiils into which their roots 

 |)enelrate. 



S(jme plants are onlj- partiall\- parasitic, such as 

 the cow-wheat {^Melampyrum) and the >ellow rattle 

 {Rhinixutlius). These represent a very deceitful 



